IOTA DLS-90/IQ4, 12 volt 90 amp regulated battery charger/supply with charge con


Last updated on July 14, 2024 11:34 am


IOTA DLS-90 (90amp 12v Charger)

The DLS series converter/power supply output is so clean and ripple-free, it can be used with or without a battery. The DLS series converter/charger quickly and efficiently charges batteries from the full rated output of the DLS. The DLS then maintains the batteries, only putting into the battery what is required by load or self discharge, cutting back to milliamps as the battery requires. Low and transient AC line voltage can be a major cause of converter/power supply failure. The DLS series converter/power supply is protected against low line voltage, as well as spikes coming from the AC power source or from improperly adjusted generators. When used as a power supply, the DLS model will only supply what is required by the load. When not in use it is essentially off, reducing electricity usage. External fuses can be quickly and easily replaced.

Chargers have 120 VAC input. 75-amp and larger chargers have 120V 20-amp plugs. 2-year warranty.


DC Output Voltage (No Load) approx. 13.6V (DC)
Output Voltage Tolerance (No Load) + or – .7%
Output Amperage, Max Continuous 90 Amps
Output Voltage (Full Load) approx. >13.4V (DC)
Maximum Power Output, Continuous 1200 Watts
Ripple and Noise <150 mV rms
Input Voltage Range 108-132V (AC)
Input Voltage Frequency 47-63
Maximum AC Current @ 108VAC 21 Amps
Typical Efficiency >80%
Max Inrush Current, Single Cycle 50 Amps  
Short Circuit Protection Yes
Overload Protection >100%
Line Regulation 100 mV rms
Load Regulation <1.5%
Fan Control Proportional
Thermal Protection YES
Working Temperature Range 0-40C
Storage Temperature -20 to 80C
Withstand Voltage 1240V @ leads
Dimensions 13″ x 6.5″ x 3.4″
Weight 7.8 lbs



The IQ4 Smart Charge Controller

The IQ4 Smart Charge Controller offers automatic charging control for DLS battery chargers, providing longer and safer use of your system’s battery. The IQ4 controller allows the battery charger to operate as an automatic “smart charger.” This gives the user the benefit of Bulk, Absorption, and Float stage charging, decreases charge times, insures proper and safe battery charging, and minimizes overcharging. The IQ4 monitors the battery at all times. If the DLS voltage remains in the long term Float stage for more than seven days, the IQ4 Smart Charger will automatically deliver a boost charge for a predetermined time, then return to the normal Float stage.